Boiler-furnace.



H. H. WILSON.

BOILER FURNACE.

APPLICATION FILED JULY 16,1910.

Patented July 11, 1911.

2 SHEETS-SHEET 1.

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H. 11. WILSON.

' BOILER runmcn. ARPLIOATIOI HEB!) JUL! 18,1910.

2 BHEETB-SIIBET B.

997,529. Patented July 11,1911.

WI TNESSES: [IVE/V708 nnanrnr HOWELL WILSON, or ALTOONA, PENNSYLVANIA.

,QOILER-FURNACE.

{1b all whom it may concern:

Be it known that I, HEARLEY HOWELL WILSON, a citizen of the United States, residing at'Altoona, in the county of Blair and State of Pennsylvania, have invented an Improved Boiler-Furnace, of which the following is a specification.

. My invention 1s a boiler furnace having improved 'means for the production and combustion of gas, whereby there is effected a desired control of the fuel and air with complete combustion and'ghigh boiler efficiency, complete combustion of the smoke producing hydrocarbon gases is obtained before impact upon the heating surfaces of the boiler, complete combustion of the fuel is secured without-the usual ash pit losses due to sifting of fine coal as in overfeeding grates, no metal partsare required in the construction of the portions of the fur- ;Znace subject to the high temperature, and maintenance charges are reduced due to the stable character of the construction.

The characteristic features lof my improvements, by which the foregoing and other desiderata are obtained, 1 will more fully appear in the following description and the accompanying drawings in illustration thereof.

-In the accompanying drawings, Figure l is. a sectional elevation of ja'p'paratus embodying my improvements, {Fig 2 is a front elevation of the same with partsshown in section, and Fig. 3 is an enlarged sectional view, taken on the line 33 of Fig. 1, with parts bro-ken away.

In the apparatus, as illustrated in the drawings, chutes 1 deliver fuel through the topsiof the respective gas producers 2 havingthe respective outlets 3 for discharging v the-products of distillation and combustion.

The outlets discharge to a passage 4 formed in the rear of the producers by the bridge wall 5 extending between the furnace walls 6. The gaseous products, rising in the passage 4, are deflected by the baffle 7 over the bridge wall 5 into the top of the chamber 8,

whence they flow transversely to the boiler tubes 9 through the gradually contracting passes 1.0, 10, '11, 12 and 13, the latter being firmed by the parallel bafiies 7 and 7 and the baffle 14, 15, 16 and 17 disposed trans- I versely t ereto. The solid products discharged into the passage 4 fall upon the grate 18 which is supported by the hinge 1'9 and .hel'd up by the engagement of a lever Specification of Letters Patent.

Patented July 11, 1911.

Application filed July 16, 1910. Serial No. 572,309.

20 thereon with a pin 20; the grate being.

disposed above the inclined floor 21 of an ash pit 22 which discharges through a port 23 having a door 24.

Each gas producer has a hearth comprising a substantially horizontal rear section 25 adjacent to the passage 4 and an inclined forward section 26 rising from the horizontal section. The section 25 has therein the ports 27 connecting the air chamber 28 with the interior of the producer body, air being supplied to the chamber by the passage 28. This chamber is connectedby the ports 29 through the bottom thereof with 22, the ports being controlled by the rocking valves 30 which are operated simultaneously by the rod 31. The section 26 has therein the diverging ports 32 connecting the air and steam chamber 33 with the interior of the producer body, the chamber having the inlet passage 34, The front wall 35 of each producer has therein, within the chamber 33,, a fuel pusher and agitator comprising a plate 36 containing ports 37, wings 38 connected with the edges of the plate 37, and a cylindrical segment 39 connected with the tops of the plate and wings; the agitator having the journals 40 revoluble in the bear ings 41 and rocked by the arms 42 fixed to the journals. The front wall 35 has, within the chamber 33 and above the agitator, the further ports 43 communicating with the upperzone of the producer body; The cas- I ing 33 has the openings 44, normally closed by the valves 44, by which a rod can be inserted and passed through the ports 43,

to clear them and poke the fuel above the agitator. Tubes 45, having their outer ends closed normally by the valves 45, extend through the chamber 33 and the hearth section 26 parallel to the surface of the hearth section 25, these tubes permitting the insertion of rods for clearing the flat hearth section of clinkers. Arches 46, extending transversely or from side to side and inclining downwardly from front to rear, roof the producers, the several producers used per furnace making the arch span comparatively small and less liable to destructlon.

In operation, coal is supplied constantly through the chute 1 to keep the body 2 constantly filled with fuel. As the coal descends in the producer, the upper zone has distributed therethrough air combined with steam, which is supplied from the passage 34 to the chamber -33"-and del;ivered there- .thepasses by which they are directed into tion25, air is distributed therethrough from v the chamber 28, the coke is consumed, and a1r lscombined with gas produced-1n the.

earlier stages of the'operation to support its combustion in the chambers 4 and 8 and the succeeding furnace passes. In the event of the fuel being pushed forward too rapidly, with the delivery of coke upon the grate 18, the valves 30 are opened and air is allowed to flow from the chamber 28, by

way of the ports 29 and chamber 22, through the grate, by which the combustion of the coke is completed, the refuse therefrom being dumped into the ash pit.

The usual limitations upon the operation of forcing a boiler, which result from the limitations upon the fuel and air-supply, are avoided by the foregoing. improvements, whereby any desired amount of fuel and air can be used, with the production and combustion of the desired amount of gas, which permits the boiler to be forced to a high limit. As the flue draft is not required for drawing the air through the fuel, its force can be utilized for drawing the gases through contact with the heating surfaces of the boiler, permitting" the use of smaller passes and higher velocities with consequentlygreater heating efliciency. The production of the gases is not only under control but they are delivered in such place and condition that the maximum energy can be obtained therefrom and utilized. I

Having described my invention, I claim: 1. A distillation and combustion chamber having a fuel inlet atthe top thereof, an outlet for'the products of combustionat the bottom thereof, a stationary hearth section having ports therein adjacent to said outlet,

an inclined stationary hearth section having ports therein between said hearthsection first named and said inlet, means whereby the supply of air to the different ports canbe independently controlled and an oscillating agitator between said inclined hearth section and said inlet.

2. A distillation and combustion chamber having a fuel inlet at the top thereof, an outlet for delivering products of combustion therefrom, a hearth having angularly disposed fixed sections, a roof'extending over said hearth, an agitator between said inlet and hearth adapted for pushing fuel'in said chamber across, said hearth, a chamber, and ports connecting said chambers between said inlet and agitator. I

3;A distillation and combustion chamber having a fuel inlet at the top thereof, an outlet for delivering products of combustion therefrom, a. hearth having a substantially fiat sect-ion adjacent to said outlet and Q i an. inclined section beneath said -inlet,'an

oscillating agitator above said inclined hearth section, an air chamber beneath said substantiallyfiat hearth section, ports conn'ecting said air chamber withsaid chamber first named, an air and steam chamber,

ports connecting said last named chamber with said first-named chamber, a pass to which said products of combustion are de livered, a-grate in said pass, and a passage econd named chamber dewhereby said liversair through said grate.

etxA distillation and combustion chamber having a fuel inlet at the top thereof, an outlet for products of combustion at the bottom thereof. an arch extending downwardl between said inlet and outlet, a' substantially flat hearth sectionhaving ports therein adjacent to said outlet, .an inclined hearth section having ports therein between said/flat.

section and said inlet, ports between said in;

clined hearth section and said-inlet, a chamber connected with said chamber first named .by said ports through said flat hearth section,

and a chamber connected with said chamber first named by. said ports through said inclined hearth section and said ports between said inlet and said inclined hearth section.

5. A distillation and combustion chamber having an inlet at the top thereof, anoutlet downwardly from said inlet toward said outlet, a hearth having a substantially flat bottom section adjacent to said outletand an inclined section between said inlet and sa1d flat section, a, second chamber, ports connecting said second chamber wlth sa1d first chamber and tubes extending through at the bottom thereof,- an arch inclined I said second named chamber and said in-.

clined hearth section to fiat hearth section.

6. A chamber having a fuel inlet, an outpermit access to said let for discharging gaseous products of com-' bustion therefrom, ahorizontal hearth extending inwardfrom the outlet having air ports passing upward therethrough to supply air to support combustionj'thereat, an inclined hearth leading upward from said horizontal hearth, an oscillating agitator and fuel feeder contiguousto the upper end of inclined hearth leading upward from said horizontal hearth, a fuel agitator and pusher contiguous to the upper end of the inclined hearth, a chamber contiguous to said agita- .;'tor and said inclined hearth, ports leading from said last named chamber on both sides of said agitator into said combustion chamber, a chamber beneath the horizontalhearth, and ports leading from said last named chamber through said horizontal hearth.

, 8. A distillation and combustion chamber having a fuel inlet at the top thereof, an outlet for deli ering products of combustion therefrom, a horizontal hearth extending in- 7 ward from the outlet, an inclined hearth leading'upward from said horizontal hearth, a fuel agitator contiguous to the upper end of the inclined hearth, a chamber contiguous to said agitator and said inclined hearth, ports leading from said last named chamber on both sides of said agitator into said combustion chamber, a chamber beneath the hor- .izontal hearth, ports leading from said last named chamber through said horizontal hearth, a pass into which said outlet opens, a'grate insaid pass, and means or supplying air from the chamber below the horizontal hearth upwardthrough said grate.

In witness whereof I have hereunto set my hand this 14: da} of July 1910, in the presence of the subscribing witnesses.

Witnesses A. C. Corrox, S. E. HEDDING. 

